Python 3 compatibility

test/mac/gyptest-strip-default.py

Index: test/mac/gyptest-strip-default.py
diff --git a/test/mac/gyptest-strip-default.py b/test/mac/gyptest-strip-default.py
index f73fa1124cf1d426850b45715f6bb396d2a4bc48..f3baa302c44d47dd4697451b9c2ab437ccd12cdf 100644
--- a/test/mac/gyptest-strip-default.py
+++ b/test/mac/gyptest-strip-default.py
@@ -8,6 +8,8 @@
 Verifies that the default STRIP_STYLEs match between different generators.
 """
 
+from __future__ import print_function
+
 import TestGyp
 
 import re
@@ -40,8 +42,8 @@ if sys.platform == 'darwin':
     o = re.sub(r'^[a-fA-F0-9]+', 'XXXXXXXX', o, flags=re.MULTILINE)
     assert not proc.returncode
     if o != o_expected:
-      print 'Stripping: Expected symbols """\n%s""", got """\n%s"""' % (
-          o_expected, o)
+      print('Stripping: Expected symbols """\n%s""", got """\n%s"""' % (
+          o_expected, o))
       test.fail_test()
 
   CheckNsyms(OutPath('libsingle_dylib.dylib'),